KR100297265B1 - Manufacture and equipment of high performance iron oxide - Google Patents
Manufacture and equipment of high performance iron oxide Download PDFInfo
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- KR100297265B1 KR100297265B1 KR1019990013690A KR19990013690A KR100297265B1 KR 100297265 B1 KR100297265 B1 KR 100297265B1 KR 1019990013690 A KR1019990013690 A KR 1019990013690A KR 19990013690 A KR19990013690 A KR 19990013690A KR 100297265 B1 KR100297265 B1 KR 100297265B1
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- iron oxide
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- organic substances
- roasting
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- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title claims abstract description 163
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 34
- 239000000460 chlorine Substances 0.000 claims abstract description 26
- 239000007921 spray Substances 0.000 claims abstract description 26
- 239000000126 substance Substances 0.000 claims abstract description 17
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 15
- 238000000746 purification Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 7
- 239000002912 waste gas Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract description 12
- 238000007670 refining Methods 0.000 abstract description 10
- 238000000265 homogenisation Methods 0.000 abstract description 7
- 238000005406 washing Methods 0.000 abstract description 6
- 238000000280 densification Methods 0.000 abstract description 4
- 230000006866 deterioration Effects 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical group [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 abstract description 3
- 238000005979 thermal decomposition reaction Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract 1
- 235000013980 iron oxide Nutrition 0.000 description 62
- 238000010438 heat treatment Methods 0.000 description 7
- 238000005554 pickling Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000036760 body temperature Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hcl hcl Chemical compound Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910000480 nickel oxide Inorganic materials 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910000358 iron sulfate Inorganic materials 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H13/00—Monuments; Tombs; Burial vaults; Columbaria
- E04H13/003—Funeral monuments, grave sites curbing or markers not making part of vaults
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Compounds Of Iron (AREA)
Abstract
본 발명은 분무배소 혹은 유동배소 방법으로 생산된 산화철 중에 잔류하는 염소(Cl), 수분 및 기타 유기물질을 효과적으로 제거하는 정제 방법과 산화철을 고밀도화 및 균질화를 통하여 고기능성 산화철을 제조하기 위한 것이다.The present invention is to produce a high-functional iron oxide through a high-density and homogenized purification method and iron oxide to remove chlorine (Cl), water and other organic substances remaining in the iron oxide produced by the spray roasting or flow roasting method.
분무배소와 유동배소 방법에 의한 산화철 제조방법은 염화철을 열 분해함으로 염산을 회수하는데는 효과적이나 산화철에 다량의 염소(Cl), 수분 및 기타 유기물질이 잔류하게 된다.Iron oxide manufacturing method by spray roasting and flow roasting method is effective in recovering hydrochloric acid by thermal decomposition of iron chloride, but a large amount of chlorine (Cl), moisture and other organic substances remain in iron oxide.
그러므로 산화철을 원료로 사용할 때 설비의 부식, 배합 비율의 불균형, 유동성 저하 등 많은 문제점을 내포하고 있다.Therefore, when iron oxide is used as a raw material, there are many problems such as corrosion of equipment, imbalance of mixing ratio, and deterioration of fluidity.
따라서 본 발명은 종래의 정제 방법인 재배소 혹은 수세의 문제점인 품질저하, 과다한 생산비용, 환경 공해 등을 발생하지 않고 산화철 중의 염소(Cl), 수분 및 기타 유기물질을 용이하게 제거하기 위한 것으로서, 고밀도화 및 균질화를 통하여 고기능성 산화철을 제조할 수가 있는 것이다.Therefore, the present invention is to easily remove chlorine (Cl), moisture and other organic substances in iron oxide without causing a deterioration of quality, excessive production cost, environmental pollution, etc., which is a problem of conventional refining or water washing, High density iron oxide can be produced through densification and homogenization.
Description
본 발명은 고기능성 산화철의 제조장치에 관한 것이다.The present invention relates to an apparatus for producing high functional iron oxide.
최근 전자 및 통신산업 부품의 고기능화, 경박 단소화 추세에 따라 자성재료는 전자산업 부품의 기능 소재로서 급속히 성장하고 있으며 이중에서 특히 페라이트 자성재료 주성분의 약 70∼90%를 차지하고 있는 산화철의 중요성이 증대되고 있다.In recent years, magnetic materials are rapidly growing as functional materials for the electronics industry, and the importance of iron oxide, which accounts for about 70 to 90% of the main components of ferrite magnetic materials, is increasing. It is becoming.
일반적으로 산화철을 제조하는 방법으로는 염화철과 황산철 등을 중화 반응하여 제조하는 합성방법과 냉연 강판을 제조할 때 산세과정에서 발생한 산세 폐액을 처리하여 염산은 회수하고 부산물로써 산화철이 제조되는 방법 등이 있다.In general, methods for producing iron oxide include a synthetic method for neutralizing iron chloride and iron sulfate, and a method for recovering hydrochloric acid by treating pickling waste liquid generated during the pickling process when manufacturing a cold rolled steel sheet, and manufacturing iron oxide as a byproduct. There is this.
이들 방법 중 대부분의 산화철은 산세 폐액의 처리공정에서 부산물로 제조되고 있다.Most of these methods are produced as by-products in the treatment of pickling waste.
본 발명은 산세폐액 처리 공정인 분무배소 혹은 유동배소 방법으로 생산되는 산화철에 잔류하는 염소(Cl), 수분 및 기타 유기물질을 효과적으로 제거할 수 있는 방법이다.The present invention is a method that can effectively remove chlorine (Cl), water and other organic substances remaining in the iron oxide produced by the spray roasting or flow roasting method of the pickling waste treatment process.
이러한 분무배소와 유동배소 방법에 의한 산화철 제조방법은 중화반응 방법과 달리 염화철을 열 분해함으로 산화철에 다량의 염소(Cl), 수분 및 기타 유기물질이 잔류하고 있다.Unlike the neutralization reaction method, the iron oxide manufacturing method using the spray and flow roasting method has a large amount of chlorine (Cl), moisture, and other organic substances remaining in the iron oxide by thermal decomposition of iron chloride.
산화철에 잔류된 다량의 염소(Cl), 수분 및 기타 유기물질은 산화철을 기초소재로 사용하기 위한 가공시 설비의 부식,배합 비율의 불균형, 유동성 저하 등 많은 문제점을 가져오고 있다.A large amount of chlorine (Cl), moisture, and other organic substances remaining in iron oxides bring many problems such as corrosion of equipment, imbalance of mixing ratio, and deterioration in fluidity when processing iron oxide as a base material.
따라서 유해 유기물질을 제거하기 위해 재배소, 수세 등의 방법을 사용하고 있으나 가공비 상승, 환경오염 등 많은 문제점들이 내포되고 있다.Therefore, in order to remove harmful organic materials, but using a method such as cultivation, washing, etc., there are many problems, such as processing cost rise, environmental pollution.
재배소 방법에 의한 유해 유기물질의 제거방법은 산화철을 고온으로 장시간 가열하여 유해 유기물질을 휘발 제거함으로 과량의 에너지 사용, 설비의 급격한 부식, 환경 공해, 제조 공정의 증가 등 제조 경비의 상승을 초래할 뿐만 아니라 산화철 분말의 불균일한 입자 성장으로 품질 저하를 가져와 고기능성 산화철 제조에 어려움이 있다.The removal method of harmful organic substances by the redistribution method increases the production cost by heating iron oxide at high temperature for a long time and removing the harmful organic substances by volatilization, excessive energy use, rapid corrosion of equipment, environmental pollution, and increase of manufacturing process. In addition, the non-uniform grain growth of the iron oxide powder brings about a deterioration in quality, which makes it difficult to manufacture high-functional iron oxide.
또한 수세 방법에 의한 유해 유기물질 제거방법은 막대한 설비 투자와 과량의 순수를 사용하기 위한 순수제조 장치 및 폐수 처리비용 등 생산원가의 증가를 가져오고 있다.In addition, the method of removing harmful organic substances by the water washing method has resulted in huge production investment such as huge facility investment and pure water manufacturing equipment and waste water treatment cost to use excess pure water.
본 발명은 분무배소 혹은 유동배소 방법에 의해 생산되는 산화철의 유해 유기물질을 용이하게 정제하는 방법을 개발하여 재배소 혹은 수세방법에 의한 문제점을 해결함으로써 산화철의 품질과 가격 경쟁력을 제고함과 동시에 정제된 산화철을 고밀도화 및 균질화 과정을 통하여 고기능성 산화철을 제조하고자 하는 것이다.The present invention is to develop a method for easily purifying the harmful organic substances of iron oxide produced by the spray roasting or flow roasting method to solve the problems caused by the cultivation or washing method to improve the quality and price competitiveness of iron oxide and at the same time purification It is to produce a high-functional iron oxide through the densified and homogenized process of the iron oxide.
도 1 은 본 발명의 고기능성 산화철을 제조하기 위한 설비구성도1 is a configuration diagram for manufacturing a high functional iron oxide of the present invention
도 2 는 본 발명의 분무배소 장치에 의해 제조된 산화철을 정제하기 위한 설비의 장치도2 is an apparatus diagram of a plant for purifying iron oxide produced by the spray roasting apparatus of the present invention.
[도면의 주요부분에 대한 부호의 설명][Explanation of symbols on the main parts of the drawings]
1 : 산세폐액 저장탱크 2 : 농축탑1: pickling waste storage tank 2: concentration tower
3 : 분무배소로 4 : 분진부리기3: spraying furnace 4: dusting
5 : 산화철정제용 재배소장치 6 : 버너5: redox plant for iron oxide purification 6: burner
7 : 산화철 저장탱크 8 : 진동분쇄기7: iron oxide storage tank 8: vibratory grinder
9 : 혼합기 10 : 저장탱크9: Mixer 10: Storage Tank
11 : 포장 12 : 가스흡입배관11: packaging 12: gas suction piping
13 : 공기노즐 14 : 산화철이송배관13 air nozzle 14 iron oxide transfer piping
15: 밸브15: valve
도 1 은 분무배소장치에서 산화철 중에 다량 함유된 유해 유기물질을 용이하게 정제하기 위한 산화철정제용 재배소장치와 고기능성 산화철을 제조하기 위한 설비의 계략도 이다.FIG. 1 is a schematic diagram of a redox redistribution apparatus for easily purifying harmful organic substances contained in a large amount of iron oxide in a spray roasting apparatus and a facility for manufacturing high functional iron oxide.
분무배소로(3)와 산화철 저장탱크(7) 사이에 산화철정제용 재배소장치(5)와 유해가스를 처리하기 위한 설비들이 설치되어 있다.Between the spraying furnace 3 and the iron oxide storage tank 7, a redistribution apparatus 5 for iron oxide purification and facilities for treating noxious gas are installed.
또한 산화철 저장탱크(7)의 후 공정에는 고밀도화 및 균질화 공정을 설치하여 고기능성 산화철을 제조할 수 있도록 한다.In addition, the post-process of the iron oxide storage tank (7) to provide a high-density and homogenizing process to produce a high-functional iron oxide.
산화철정제용 재배소장치(5)를 이용한 정제공정의 특징은 분무배소로(3)에서 산세폐액이 열 분해되어 분무배소로(3) 하부로 산화철이 배출될 때 산화철은 400℃ 이상의 고온으로 별도의 예열 과정이 필요 없어 단시간에 유해 유기물질의 정제가 가능하다.Characterization of the purification process using the iron oxide refining device (5) is characterized in that the iron oxide is separated at a high temperature of 400 ° C. or higher when the pickling liquor is thermally decomposed in the spray furnace 3 and the iron oxide is discharged to the lower portion of the spray furnace 3. No preheating process is required, so it is possible to purify harmful organic substances in a short time.
따라서 에너지 사용이 경제적이고 산화철 분말의 분체특성(입경) 제어와 혼합 효과를 증가할 수 있어 고기능성 산화철 제조에 적합하다.Therefore, the use of energy is economical and the powder characteristics (particle diameter) control and mixing effect of the iron oxide powder can be increased, which is suitable for producing high-functional iron oxide.
또한 분무배소장치의 공해 방지시설을 이용함으로 공해 방지를 위한 별도의 설비 투자가 필요 없다.In addition, there is no need for a separate facility investment for pollution prevention by using the pollution prevention facility of the spray roasting device.
도 2 는 산화철정제용 재배소장치(5)의 주요구성을 나타낸 것으로 점선은 기존설비를 나타내고 실선은 산화철정제용 재배소장치(5)를 나타내고 있다.Fig. 2 shows the main configuration of the iron oxide refining plant 5, and the dotted line shows the existing equipment and the solid line shows the iron oxide refining plant 5.
주요 설비로는 산화철정제용 재배소장치(5)의 본체, 버너(6), 분진 분리기(4)등으로 구성되며 기존 설비의 후속 공정에 간단히 연결하여 사용할 수 있어 본 설비의 간섭을 최소화할 수 있다.Main equipment consists of main body of iron oxide refining plant (5), burner (6), dust separator (4), etc., and can be easily connected to the subsequent process of existing equipment to minimize interference of this equipment. have.
산화철정제용 재배소장치(5)를 이용한 정제의 원리는 다음과 같다.The principle of purification using the redox device 5 for iron oxide purification is as follows.
농축된 산세폐액(FeCl2약 20wt%, HCl 약 7wt%, H2O 약 73wt%)이 분무 노즐(spray nozzle)을 통하여 분무배소로(3)로 분무되면 버너(6)의 열풍에 의한 기체ㆍ액체 반응으로 산화철이 생성되어 자중에 의해 분무배소로(3) 하부로 배출되고, 염산(HCl)은 흡수탑에서 재생된 후 폐가스는 세정탑에서 정제된다.When concentrated pickling liquor (FeCl 2 about 20wt%, HCl about 7wt%, H 2 O about 73wt%) is sprayed into the spray furnace 3 through a spray nozzle, gas from the hot air of the burner 6 is sprayed. Iron oxide is produced by the liquid reaction and discharged to the lower part of the spray furnace 3 by its own weight. Hydrochloric acid (HCl) is regenerated in the absorption tower, and the waste gas is purified in the washing tower.
이때 분무배소로(3) 하부로 배출된 산화철에는 FeCl2, FeOCl, Fe2O3ㆍH2O, HCl, H2O 등이 함유되어 있다.At this time, the iron oxide discharged to the lower part of the spray furnace 3 contains FeCl 2 , FeOCl, Fe 2 O 3 ㆍ H 2 O, HCl, H 2 O and the like.
산화철정제용 재배소장치(5)는 분무배소로(3)의 하부에 설치되며 염산(HCl), 수분(H2O)과 같은 가스와 미반응된 FeCl2, FeOCl, Fe2O3ㆍH2O 등을 반응시켜 안정 상태의 산화철(Fe2O3)로 제조할 수 있는 구조로 설계되어 산화철 정제에 적합하고, 폐가스는 분무배소로(3)로 흡입됨으로 별도의 공해방지 시설이 필요 없다.The redox device 5 for iron oxide purification is installed at the lower part of the spray furnace 3 and unreacted with FeCl 2 , FeOCl, Fe 2 O 3 ㆍ H and gases such as hydrochloric acid (HCl) and water (H 2 O). It is designed to produce iron oxide (Fe 2 O 3 ) in stable state by reacting 2 O etc., and is suitable for iron oxide refining, and waste gas is sucked into spray furnace (3), so no separate pollution prevention facility is required. .
산화철정제용 재배소장치(5)의 각 설비의 기능은 다음과 같다.The function of each facility of the iron oxide refining plant 5 is as follows.
⊙ 본체 : 내부는 날개가 부착된 스크류컨베이어(screw conveyor) 2기가 설치되어 반응시간의 연장과 산화철을 혼합하여 미반응된 FeOCl, FeCl2등을 반응시킨다.⊙ Main body: Inside, two screw conveyors with wings are installed to prolong reaction time and mix iron oxide to react unreacted FeOCl, FeCl 2, etc.
⊙ 가스흡입배관(12) : 본체의 한쪽에 설치되어 분무배소로(3) 하부로 배출된 산화철의 잔류 물질 중 염산(HCl),수분(H2O) 등 폐가스를 흡입하게 된다.⊙ Gas suction pipe (12): It is installed on one side of the main body to inhale waste gas such as hydrochloric acid (HCl), water (H 2 O) among the residual material of iron oxide discharged to the lower part of the spray furnace (3).
⊙ 분진분리기(4) : 가스흡입배관(12)에서 흡입된 폐가스에서 분진을 분리하며 가스는 분무배소로(3)의 내부로 보내지고 분진은 산화철이송배관(14)으로 유입된다.⊙ Dust separator (4): The dust is separated from the waste gas sucked from the gas suction pipe (12), the gas is sent to the interior of the spray furnace (3) and the dust is introduced into the iron oxide transfer pipe (14).
⊙ 버너(6) : 열풍을 본체에 회전 투입함으로써 본체의 내부를 일정한 온도로 유지하여 미반응된 FeOCl, FeCl2등이 반응할 수 있도록 열량을 공급한다. 또한 화염이 산화철에 직접 접촉하지 않도록 한다.⊙ Burner (6): By supplying hot air to the main body by rotating the main body at a constant temperature to supply the amount of heat so that unreacted FeOCl, FeCl 2 and the like can react. It also ensures that the flame does not come in direct contact with iron oxide.
⊙ 공기 노즐(13) : 본체의 하부에 위치하여 버너(6)에서 가열된 일부 열풍을 본체에 공급하여 미반응된 FeOCl, FeCl2등이 반응할 수 있도록 한다.⊙ Air Nozzle 13: Located at the bottom of the main body to supply some hot air heated in the burner 6 to the main body so that unreacted FeOCl, FeCl 2, etc. can react.
이하 본 발명을 실시예에 의하여 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to Examples.
실시예 1Example 1
산화철정제용 재배소장치(5)의 본체 외부에 전기히터(electric heater)를 설치 가열하여 시험을 실시하였다. 산화철정제용 재배소장치(5)는 분무배소로(3)와 가스흡입배관(12)으로 연결하여 미반응물질과 분해된 염소(Cl), 수분, 기타 유기물질 등이 원활하게 분무배소로(3)로 흡입되게 하였다. 본체 중앙에는 온도계를 설치하여 본체의 내부 온도를 500,550,600℃로 조절하여 시험을 실시하였다. 표 1은 실시예 결과를 나타낸 것이다.The test was carried out by installing and heating an electric heater outside the main body of the iron oxide purification plant 5. The redox apparatus 5 for iron oxide purification is connected to the spraying furnace 3 and the gas suction pipe 12 to smoothly spray the unreacted substance and decomposed chlorine (Cl), moisture, and other organic substances into the spraying furnace ( 3). A thermometer was installed in the center of the main body, and the test was performed by adjusting the internal temperature of the main body to 500,550,600 ° C. Table 1 shows the results of the examples.
실시예 결과 산화철 중 염소(Cl)가 급격한 감소를 보이고 온도 조절도 용이하나, 전기히터에 의한 가열은 전기 사용료 및 설비의 투자가 막대하다.Example As a result, the chlorine (Cl) in the iron oxide shows a sharp decrease and temperature control is also easy, but heating by electric heater is a huge investment of electricity and equipment.
실시예 2Example 2
산화철정제용 재배소장치(5)의 본체 내부를 버너(6)에 의해 일정한 온도로 유지하여 미반응된 FeOCl, FeCl2등이 반응할 수 있도록 하였다.The inside of the body of the iron oxide refining device 5 was maintained at a constant temperature by the burner 6 so that unreacted FeOCl, FeCl 2 and the like could react.
또한 산화철정제용 재배소장치(5)의 내부는 실시예 1과 동일하게 분무배소로(3)와 가스흡입배관(12)으로 연결되어 산화철과 분해된 염소(Cl), 수분, 기타 유기물질 등이 원활하게 분무배소로(3)로 흡입되게 하였다. 표 2는 실시예 결과를 나타낸 것이다.In addition, the inside of the iron oxide purification plant 5 is connected to the spray furnace 3 and the gas suction pipe 12 in the same manner as in Example 1, and iron oxide and decomposed chlorine (Cl), moisture, and other organic substances. This was smoothly sucked into the spray furnace (3). Table 2 shows the results of the examples.
실시예 결과 산화철 중 염소(Cl)의 감소 효과가 전기히터보다 우수한 결과를 보이고 있다. 또한 버너(6) 가열방식의 경우 저가의 연료를 사용함으로 전기히터의 가열방식 보다 경제적이라고 할 수 있다.Example Results The reduction effect of chlorine (Cl) in the iron oxide is showing better results than the electric heater. In addition, the burner (6) heating method can be said to be more economic than the heating method of the electric heater by using a low-cost fuel.
실시예 3Example 3
산화철정제용 재배소장치(5)에 의해 정제된 산화철을 고기능성 산화철로 제조하기 위해 고밀도화 및 균질화를 하였다.The iron oxide purified by the iron oxide refining apparatus 5 was densified and homogenized in order to produce a highly functional iron oxide.
고밀도화는 연속식 진동분쇄기(8)로 실시하였고, 균질화는 산화철의 품질 편차를 최소화하기 위한 혼합기(9)로 실시하였다.Densification was carried out with a continuous vibration mill (8), homogenization was carried out with a mixer (9) to minimize the quality deviation of iron oxide.
실시예 결과 산화철정제용 재배소장치(5)와 진동분쇄기(8)를 통과한 산화철의 겉보기 밀도(Apparent density)가 약 0.40∼0.45g/cc에서 0.70∼0.75g/cc로 고밀도화가 되었다.EXAMPLES The apparent density of the iron oxide which passed through the redox device 5 and the vibration mill 8 was increased from about 0.40 to 0.45 g / cc to 0.70 to 0.75 g / cc.
균질화는 산화철정제용 재배소장치(5)와 진동분쇄기(8)의 고밀도화 장치를 통과 후 1ton 단위로 포장된 산화철 10ton을 혼합기(9)에 넣고 약 30분 정도 혼합하는 것으로, 표 3 은 균질화 전ㆍ후의 품질 편차를 비교한 것이다.Homogenization is a mixture of 10 tons of iron oxide packed in 1ton unit into the mixer (9) after passing through the densification device of the iron oxide refining device (5) and the vibratory crusher (8), and mixing for about 30 minutes. ㆍ Compare the quality deviations afterwards.
본 발명은 분무배소 혹은 유동배소 방법에 의해 제조된 산화철을 재배소 혹은 수세과정 없이 유해 유기물질을 용이하게 제거함으로 생산공정의 단순화와 이에 따른 생산비용을 절감할 수 있다. 또한 재배소에 따른 산화철 분말의 입자성장 제어와 고밀도화 및 균질화 공정을 통하여 고기능성 산화철 생산에 적합하고 수세과정에서 발생하는 폐수처리 비용의 절약과 환경보존 효과가 있다. 또한 본 발명은 분무배소 방식으로 생산하는 산화구리(Cu0), 산화니켈(NiO) 및 각종 희토류 금속의 초미립 분말을 제조하는 공정에 적용도 가능하다.The present invention can simplify the production process and thereby reduce the production cost by easily removing the harmful organic substances without the redistribution or washing process of the iron oxide produced by the spray roasting or flow roasting method. In addition, it is suitable for the production of high-functional iron oxide through the particle growth control and density densification and homogenization process according to the cultivation plant, and there is an effect of saving the wastewater treatment cost and environmental preservation effect. In addition, the present invention can be applied to a process for producing ultrafine powders of copper oxide (Cu0), nickel oxide (NiO) and various rare earth metals produced by spray roasting.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0259405A (en) * | 1988-08-26 | 1990-02-28 | Kawasaki Steel Corp | Spray roaster |
| JPH04128396A (en) * | 1990-09-17 | 1992-04-28 | Sumitomo Metal Ind Ltd | Method for recovering iron oxide |
| JPH0741321A (en) * | 1993-07-28 | 1995-02-10 | Kawasaki Steel Corp | Roasting furnace for production iron oxide |
| JPH09126443A (en) * | 1995-08-25 | 1997-05-16 | Nkk Corp | Apparatus for manufacturing iron oxide |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0259405A (en) * | 1988-08-26 | 1990-02-28 | Kawasaki Steel Corp | Spray roaster |
| JPH04128396A (en) * | 1990-09-17 | 1992-04-28 | Sumitomo Metal Ind Ltd | Method for recovering iron oxide |
| JPH0741321A (en) * | 1993-07-28 | 1995-02-10 | Kawasaki Steel Corp | Roasting furnace for production iron oxide |
| JPH09126443A (en) * | 1995-08-25 | 1997-05-16 | Nkk Corp | Apparatus for manufacturing iron oxide |
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| KR100373759B1 (en) * | 2000-05-09 | 2003-02-26 | 주식회사 이지 | Removal system remaining chlorine of iron oxide |
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